US EPA Method 624: GC Analysis of Volatiles on SPB®-624 after Purge & Trap using "K" Trap
Materiales
analytical column
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For use with
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Jeringa Hamilton®, 1000 gama GASTIGHT®, cierre Luer de PTFE
1005TLL, PTFE Luer lock, volume 5 mL, needle size (not included)Jeringa Hamilton®, 1000 gama GASTIGHT®, cierre Luer de PTFE
1005SLPT (for Purge & Trap), volume 5 mL, needle size (not included)related product
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EPA Vials, white polypropylene screw top hole cap, pre-cleaned and assembled
volume 40 mL, clear glass vial, vial O.D. × H 29 mm × 82 mm, pkg of 72 eaEPA Vials, white polypropylene screw top hole cap, pre-cleaned and assembled
volume 40 mL, amber glass vial, O.D. × H 29 mm × 82 mm, pkg of 72 easample prep
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Purge/Trap K Vocarb® 3000
for use with Tekmar® Velocity XPT, LSC-1, LSC-2, LSC-2000, 4000 (Straight, 12 in./30.5 cm, Swagelok fitting), HT-3Purge/Trap K Vocarb® 3000
for use with Tekmar® 3000, 3100 (Straight, 12 in./30.5 cm, Valco fittingstandard
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EPA 624 Purgeable Calibration Mix
2000 μg/mL each component in methanol, without gases, analytical standardCONDITIONS
sample/matrix
each analyte at 50 ppb in 5 mL water
purge trap
VOCARB 3000 “K”
purge
40 mL/min at 25 °C for 11 min
dry purge
2 min
desorption preheat
205 °C
desorption process
40 mL/min at 210 °C for 2 min
bake
260 °C for 10 min
transfer line/valve temp.
110 °C
column
SPB-624, 30 m × 0.25 mm I.D., 1.4 μm (24255)
oven
40 °C (2 min), 7 °C/min to 135 °C, 30 °C/min to 230 °C (3 min)
inj. temp.
150 °C
MSD interface
200 °C
scan range
m/z = 35-400
carrier gas
helium, 1.1 mL/min
injection
30:1 split
liner
0.75 mm I.D. SPME
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Legal Information
SPB is a registered trademark of Merck KGaA, Darmstadt, Germany